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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-05-23 14:17:25 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-06-15 13:02:44 +0200 |
| commit | 65f868cac6f7fd5c3ad02046574c19f8f4673255 (patch) | |
| tree | 15103fb87ed2e7161c17006e2c077f35e3506a95 /bsps/arm/tms570 | |
| parent | Add RTEMS_SYSINIT_CPU_COUNTER (diff) | |
| download | rtems-65f868cac6f7fd5c3ad02046574c19f8f4673255.tar.bz2 | |
Add _CPU_Counter_frequency()
Add rtems_counter_frequency() API function. Use it to initialize the
counter value converter via the new system initialization step
(RTEMS_SYSINIT_CPU_COUNTER). This decouples the counter implementation
and the counter converter. It avoids an unnecessary pull in of the
64-bit integer division from libgcc.
Update #3456.
Diffstat (limited to 'bsps/arm/tms570')
| -rw-r--r-- | bsps/arm/tms570/cpucounter/cpucounterread.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/bsps/arm/tms570/cpucounter/cpucounterread.c b/bsps/arm/tms570/cpucounter/cpucounterread.c index c5e62d382d..ada65a87ed 100644 --- a/bsps/arm/tms570/cpucounter/cpucounterread.c +++ b/bsps/arm/tms570/cpucounter/cpucounterread.c @@ -46,8 +46,11 @@ static void tms570_cpu_counter_initialize(void) pmcr &= ~ARM_CP15_PMCR_D; pmcr |= ARM_CP15_PMCR_E; arm_cp15_set_performance_monitors_control(pmcr); +} - rtems_counter_initialize_converter(2 * BSP_PLL_OUT_CLOCK); +uint32_t _CPU_Counter_frequency(void) +{ + return 2 * BSP_PLL_OUT_CLOCK; } CPU_Counter_ticks _CPU_Counter_read(void) @@ -57,6 +60,6 @@ CPU_Counter_ticks _CPU_Counter_read(void) RTEMS_SYSINIT_ITEM( tms570_cpu_counter_initialize, - RTEMS_SYSINIT_BSP_START, + RTEMS_SYSINIT_CPU_COUNTER, RTEMS_SYSINIT_ORDER_FIRST ); |